Classicly

The word ‘character’ occurs only once in the New Testament, and that is in the passage in the prologue of the Epistle to the Hebrews, where the original word is translated ‘express image’ in our version.  Our Lord is the Express Image of the Invisible Father.  No man hath seen God at any time.  The only-begotten Son, who is in the bosom of the Father, He hath declared Him.